Great Black-backed Gull (Larus marinus)

(last update: October 12, 2011)

Coordinators:
Jean-Michel Sauvage (France)
Morten Helberg (Norway)
Nils Helge Lorentzen (Norway)
Mars Muusse (Netherlands)

Great Black-backed Gull adult May

 

gbbgad611.jpg (77140 bytes)Great Black-backed Gull (Larus marinus) 1A5 adult, May 2009, Appledore Island. Picture: Alex Tongas.
gbbgad611.jpg (77140 bytes)Great Black-backed Gull (Larus marinus) 1M7 adult, May 21 2012, Tillies Bank - offshore Gloucester, MA. Picture: Appledore Blog.
gbbgad611.jpg (77140 bytes)Great Black-backed Gull (Larus marinus) 1M8 adult, May 28 2013, Tillies Bank - offshore Gloucester, MA. Picture: Keith Mueller.
7593.jpg (67822 bytes)Great Black-backed Gull (Larus marinus) AEN adult, May 20 2012, Sable Island, NS. Picture: Sable Island banding team.
7593.jpg (67822 bytes)Great Black-backed Gull (Larus marinus) AKR adult, May 28 2013, Sable Island, NS. Picture: Sable Island banding team.
gbbgad611.jpg (77140 bytes)Great Black-backed Gull L. marinus adult, May 17 2002, Le Portel / Boulogne-sur-Mer, France (50.42N,1.34E). The all white tail, the bold white tips on the primaries and the lack of any black on the bill make it most likely to be in adult plumage.